The FBI violence stats for 2013 are out.

[jimmy the one]

7. repeat

kioa: Your post shows that gun ownership has increased during the exact same timeframe the OP shows that murders decreased

... the percentage of firearms involved in homicides decreased from 1993 thru 2000, from approx. 71% down to 64%, about a 10% decline, statistically significant. This is the same time period that household & personal firearm ownership declined 20 -30% accd'g to GSS, gallup, & Pew.

Ergo, as gun ownership rates declined, so did homicide rates. Even in Chicago murder rates went down 50%, ~92 - ~2012.

Homicide is just a percent or two of overall violent crime: Crime is down -- and so is gun ownership July 23, 2012.. three important trends to keep in mind: Criminal violence in America has dropped to levels not seen in more than a generation, the percentage of Americans owning guns is down and public support for gun control measures has plummeted as well.
.. the percentage of Americans who report owning a pistol or shotgun, the weapons most often used in crime, is now down to 1 in 5, about half what it was in the 1970s.
The major point is that the American “culture of gun ownership” has been strikingly on the wane for the past generation. http://articles.latimes.com/2012/jul/23/news/la-pn-crime-is-down-and-so-is-gun-ownership-20120722